Boletín de aludes

Jasper

Feb 14 – 15, 2020Parks Canada
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Archivado · caducó 7 years ago

Peligro de aludes

Sat
Sun
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil

Lo esencial

Relentless winds continue to build on the existing wind slabs and cornices in the Alpine. Varied surface crusts making riding challenging below 1700m.

Good turn found between 1740m and 1705m, Enjoy!

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2.5

    Wind slabs are prevalent through the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely
    Tamaño
    1.5–3

    Shallow snowpack zones and/or large triggers such as cornice failures could trigger this deep layer. The consequences would be severe!

Avalanche Summary

Field team in Churchill Slide Paths observed only previous evidence of natural avalanche activity. Visibility was poor over then day; no new avalanche observations. Profile at 2250m, HS: 135cm. No failures found in field tests.

Confidence

Wind effect is extremely variable

Weather Forecast

Forecasts show an intense pulse of precipitation (~10mm) accompanied with strong south westerly winds overnight Thursday. Broken skies through the day Friday, west winds continue. Alpine temperatures high, -10.

See Weather synopsis here: Avalanche Canada Mountain Weather Forecast

Snowpack Summary

Relentless SW winds continue building variable strength windslab and pronounced cornice development on Northerly aspects and cross loaded features treeline and above. Supportive mid-pack bridging the deeper basal facets and depth hoar. Average HS at treeline: ~180cm.

Regiones cubiertas